ty from all: i will come just send me a mesage where to go or something like that.... I was owner of a m3 e46 so here are some diferences: m3 was e46 model 2004 manual transmision also full options exept of 19 (the roads in Bratislava are also not the best.... so m3 is consuming less in city m3 13-15 and never more than 18 Z4 is like 17-20 in Bucharest and sometimes also 22 M3 have more comunicative driving i mean i always know what the front wheels are doing z4m sucks here you dont feel anything.... M3 is understearing more and is much earlier on the limit than z4 M3 is eazyer to drive on limit z4 is perfect until one moment than the rear is overstering realy fast....so m3 is slover but eazyer to drive z4 is harder to make drifts 1.it feels diferent because you are siting at back of the car and 2. you dont have the feeling for the front of the car 3.drifts with z4m are more funny much much more:P (just have 8-10 drifts until now so i will tell you more later) z4 is going better from 0-200 m3 is more stable at 250+ z4 brakes are better from higher speeds but is harder to place them right so in final m3 feels more like woman car in comparation to z4m i mean z4 is more feeling like e36 is not so comfortable at all as e46 Im not a expert in driving cars this are only my feelings after first 2500km with z4 I never had a accident with my sport cars i hope it will remain so ,so i need to wach out in z4 is dangerous car:D